Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

Volker Engel; Niels Engholm Henriksen

doi:10.1063/1.480566

Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

Volker Engel, Niels Engholm Henriksen

Department of Chemistry

University of Würzburg

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Abstract

We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

Original language	English
Journal	Journal of Chemical Physics
Volume	112
Issue number	1
Pages (from-to)	106-111
ISSN	0021-9606
DOIs	https://doi.org/10.1063/1.480566
Publication status	Published - 2000

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Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

MOTION
EXCITATION
PHOTODISSOCIATION
MOLECULES
DYNAMICS

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abstract = "We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.",

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N2 - We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

AB - We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

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KW - EXCITATION

KW - PHOTODISSOCIATION

KW - MOLECULES

KW - DYNAMICS

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DO - 10.1063/1.480566

M3 - Journal article

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JF - Journal of Chemical Physics

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ER -

Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

Abstract

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Keywords

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